UFC on FOX 4 headliner Brian Stann has been pulled out of his Aug. 4 fight against Hector Lombard due to an injured shoulder, MMAFighting.com has confirmed with sources close to the fight. According to those same sources, Stann will not require surgery for the injured shoulder, but will be on the sidelines for approximately 6-to-8 weeks.

No word just yet on who will replace Stann against the former Bellator middleweight champion later this summer.

Stann last appeared in the Octagon this past April when he knocked out Alessio Sakara in the first round of the co-main event at UFC on FUEL TV 2.